205146151 has 4 divisors (see below), whose sum is σ = 234452752. Its totient is φ = 175839552.

The previous prime is 205146121. The next prime is 205146181. The reversal of 205146151 is 151641502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (205146121) and next prime (205146181).

It is not a de Polignac number, because 205146151 - 2¹⁹ = 204621863 is a prime.

It is a super-2 number, since 2×205146151² = 84169886540229602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205146101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14653290 + ... + 14653303.

It is an arithmetic number, because the mean of its divisors is an integer number (58613188).

Almost surely, 2^205146151 is an apocalyptic number.

205146151 is a deficient number, since it is larger than the sum of its proper divisors (29306601).

205146151 is an equidigital number, since it uses as much as digits as its factorization.

205146151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29306600.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 205146151 is about 14322.9239682406. The cubic root of 205146151 is about 589.7769443137.

Adding to 205146151 its reverse (151641502), we get a palindrome (356787653).

The spelling of 205146151 in words is "two hundred five million, one hundred forty-six thousand, one hundred fifty-one".